Frozen is now a classic tale and even if it released a year ago it has become a phenomenon and already a Disney Classic. Based on its success, Disney will propably make a sequel but they may keep it original. Maybe if a sequel comes out, it will be ruined and be reminded for it. Like "The Lion King", "Aladdin", "Beauty & the Beast" and "The Little Mermaid" it may be even worse than the first movie. But even if I don't want a sequel to ruin it, I WISH they make a sequel and do it FAST!!! I don't care if it will be good, but from my HUGE love for the movie, I really want to see Elsa, Anna, Olaf and the rest of the cast again in the cinema or in DVD.
I suppose it'd depend on whether or not they could come up with a suitable storyline for a sequel, but I think it's likely to happen someday, based on the success of the original film.
Judging by Disney's line up, they probably will, but I don't think it would that good. if they did something similar to tangled, then sure, it could work, but a full length feature film, no. Sorry, but there aren't any stories left for Frozen. :(
well... maybe disney won't make frozen in a second part, but they will make a short movie in the next year, with title "frozen fever" i read that 3 days ago in the imdb.com